7Troubleshooting

Flash malfunction warning

While the SB-R200 is used as a wireless remote flash unit, the red ready-light rapidly blinks four times and stops for 0.5 sec. This cycle is repeated six times if the flash unit receives a signal such as Non-TTL auto flash or Repeating flash.

Problems with the Commander SU-800 and the Remote Speedlight SB-R200

Problem

Cause

Solution

The SB-R200

The SB-R200’s power is off.

Confirm that the red ready-light

does not fire.

 

comes on.

 

 

 

 

 

 

Different channel numbers are set

Set the same channel number to

 

 

to the Commander (SU-800) and

both flash units.

 

 

the SB-R200.

 

 

 

 

 

 

 

Different group names are set to

Set the same group to both flash

 

 

the Commander (SU-800, etc.) and

units.

 

 

SB-R200.

 

 

 

 

 

 

 

Control signal from the

Rearrange the position of the

 

 

Commander (SU-800, etc.) does

SB-R200 so that the light from the

 

 

not reach the light sensor window

Commander reaches the SB-R200.

 

 

of the SB-R200.

 

 

 

 

Vignetting occurs

The shutter speed set is faster or

Set the shutter speed to the flash

 

 

slower than the flash sync speed.

sync speed.

 

 

 

 

 

 

Vignetting occurs with a wide

Change the lens’ focal length.

 

 

angle lens

 

 

 

 

Underexposure

Light from the flash unit enters the

Rearrange the position of the

occurs

camera lens or light sensor window

camera or flash unit so that the

 

 

on the flash unit.

light does not enter the lens or light

 

 

 

sensor window.

 

 

 

AF-Assist

The SU-800 is set to close-up

In the close-up mode, the

Illuminator does

mode.

AF-Assist Illuminator on the

not turn on.

 

SU-800 does not illuminate.

 

 

 

However, camera’s AF-assist

 

 

 

illuminator turns on.

 

 

 

 

 

 

Camera’s focus mode is set to

Set camera’s focus mode to

 

 

“AF-C”.

“AF-S”.

 

 

 

 

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